2VFA	Transferase	date	Nov 02, 2007
title	Crystal Structure Of A Chimera Of Plasmodium Falciparum And Human Hypoxanthine-Guanine Phosphoribosyl Transferases
authors	P.Gayathri, T.S.Selvi, I.N.S.Subbayya, C.S.Ashok, H.Balaram, M.R.N.Murthy
compound		source
Molecule: Hypoxanthine-Guanine-Xanthine Phosphoribosyltransferase, Hypoxanthine-Guanine Phosphoribosyltransferase; Chain: A, B Fragment: Residues 1-56,49-160,171-231 Synonym: Chimera Of Plasmodium Falciparum And Human Hypoxanthine-Guanine Phosphoribosyl Transferases, Hgxprt, Hgxprtase, Hgprt, Hgprtase; Ec: 2.4.2.-, 2.4.2.8 Engineered: Yes Other_details: Chimera Of Human And Plasmodium Falciparum Hgprts		Organism_scientific: Plasmodium Falciparum, Homo Sapiens Organism_taxid: 5833, 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Sf609 Expression_system_vector_type: Plasmid Expression_system_plasmid: Ptrc99a
symmetry	Space Group: I 2 3	R_factor 0.230 R_Free 0.278
crystal cell	length a length b length c angle alpha angle beta angle gamma 161.811 161.811 161.811 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.8 Å
ligand	5GP, SO4	enzyme	Transferase E.C.2.4.2 BRENDA
Gene Ontology	Chain Function Process Component A, B nucleotide binding hypoxanthine phosphoribosylt... transferase activity transferase activity, transf... metal ion binding purine ribonucleoside salvag... nucleoside metabolic process... GMP salvage IMP salvage XMP salvage cytoplasm
Primary reference	Crystal structure of a chimera of human and Plasmodium falciparum hypoxanthine guanine phosphoribosyltransferases provides insights into oligomerization., Gayathri P, Sujay Subbayya IN, Ashok CS, Selvi TS, Balaram H, Murthy MR, Proteins. 2008 Dec;73(4):1010-20. PMID:18536021

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (71 Kb) [Save to disk] Biological Unit Coordinates (2vfa.pdb1.gz) 64 Kb LPC: Ligand-Protein Contacts for 2VFA CSU: Contacts of Structural Units for 2VFA Likely Quarternary Molecular Structure file(s) for 2VFA Structure Factors (148 Kb) Retrieve 2VFA in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2VFA from S2C, [Save to disk] Re-refined 2vfa structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2VFA in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 2VFA

Cartoon representation from PDB Cartoon Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 2VFA, from MSDmotif at EBI Fold representative 2vfa from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2vfa_A] [2vfa_B] SWISS-PROT database: [P20035] [P00492] Domain organization of [HGXR_PLAFG] [HPRT_HUMAN] by SWISSPFAM Alignments of the sequence of 2VFA with the sequences similar proteins can be viewed for 2VFA's classification [HGXR_PLAFG] [HPRT_HUMAN] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [HGXR_PLAFG] [HPRT_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 2VFA

Community annotation for 2VFA at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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